<template>
  <div>
<!--  面包屑导航-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
<!--      卡片视图-->
      <el-card>
        <el-row :gutter="20">
          <el-col :span="8">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
          <el-col :span="2">
            <el-tag>欢迎页点击了{{$store.state.count}}次</el-tag>
          </el-col>
        </el-row>
        <!--    用户列表区域-->
        <el-table :data="userlist" border stripe  height="450">
          <el-table-column type="index" label="序号"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
<!--              scope.row获取整行的数据-->
<!--              {{scope.row}}-->
              <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
<!--              {{scope.row}}-->
<!--              修改用户信息-->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showUserInfo(scope.row.id)"></el-button>
<!--              删除用户信息-->
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUserInfo(scope.row.id)"></el-button>
<!--              分配角色-->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
<!--        分页-->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </el-card>
<!--    添加用户对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addFormClosed">
<!--      close 监听对话框的关闭-->
      <!--    添加用户对话框表单区域-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRulesRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUserInfo">确 定</el-button>
      </span>
    </el-dialog>
<!--修改用户对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editUserDialogVisible"
      width="50%"
      @close="editFormClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRulesRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editUserDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser()">确 定</el-button>
      </span>
    </el-dialog>
<!--    分配角色对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="editRoleDialogVisible"
      width="50%"
      @close="editRoleClosed">
      <div>
        <p>当前用户：{{userInfo.username}}</p>

        <p>当前角色：{{userInfo.role_name}}</p>
        <p>分配角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in allRolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 校验邮箱的规则
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    // 校验手机号的规则
    var checkMobile = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法手机号'))
    }
    return {
      // 查询用户列表数据
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 用户列表
      userlist: [],
      total: 0,
      //  控制对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户表单数据对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户表单数据对象验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 6, message: '长度在3到6个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 10, message: '长度在6到10个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户对话框
      editUserDialogVisible: false,
      // 修改用户表单数据对象
      editForm: {
        username: '',
        email: '',
        mobile: ''
      },
      // 修改用户表单数据对象验证规则
      editFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 6, message: '长度在3到6个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框
      editRoleDialogVisible: false,
      // 分配角色对象
      userInfo: {},
      // 所有角色的数据列表
      allRolesList: [],
      // 获取分配角色的值
      selectRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听每页条数的变化
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值的改变
    handleCurrentChange (newChange) {
      this.queryInfo.pagenum = newChange
      this.getUserList()
    },
    // 修改用户状态
    async userStateChange (userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        // 操作失败 用户状态去反
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('修改状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听关闭添加用户对话框重置
    addFormClosed () {
      // console.log(this)
      // 获取对话框的引用实例进行重置操作
      this.$refs.addFormRulesRef.resetFields()
    },
    // 添加用户预验证
    addUserInfo () {
      this.$refs.addFormRulesRef.validate(async valid => {
        // console.log(valid)
        if (!valid) { return }
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        }
        // 关闭对话框
        this.addDialogVisible = false
        // 刷新数据列表
        await this.getUserList()
        // 成功消息提示
        this.$message.success('添加用户成功')
      })
    },
    // 修改对话框查询用户
    async showUserInfo (id) {
      const { data: res }  = await this.$http.get('users/' + id)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editUserDialogVisible = true
    },
    // 监听关闭添加用户对话框重置
    editFormClosed () {
      // console.log(this)
      // 获取对话框的引用实例进行重置操作
      this.$refs.editFormRulesRef.resetFields()
    },
    // 修改用户预验证
    editUser () {
      this.$refs.editFormRulesRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, this.editForm)
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户失败')
        }
        // 关闭对话框
        this.editUserDialogVisible = false
        // 刷新数据列表
        await this.getUserList()
        // 成功消息提示
        this.$message.success('修改用户成功')
      })
    },
    // 删除用户
    async deleteUserInfo (id) {
      // console.log(id)
      // 弹窗询问是否删除
      const result = await this.$confirm('此操作将永久删除该文件, 是否继续?', '删除用户', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // console.log(result)
      // result 确定为confirm 取消为cancel
      if (result !== 'confirm') {
        return this.$message.info('取消了删除')
      }
      // 发起删除数据请求
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      // 重新刷新列表
      await this.getUserList()
    },
    // 分配角色对话框
    async setRole (userInfo) {
      this.userInfo = userInfo
      // 获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      // console.log(res)
      this.allRolesList = res.data
      this.editRoleDialogVisible = true
    },
    // 保存分配角色
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.info('请选择用户角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) return this.$message.error('分配用户失败')
      this.$message.success('分配角色成功')
      this.editRoleDialogVisible = false
      await this.getUserList()
    },
    // 分配权限对话框的重置
    editRoleClosed () {
      // 已选择的角色id进行重置
      this.selectRoleId = ''
    }
  }
}
</script>

<style scoped>
.el-pagination {
  display: flex;
  justify-content: flex-end;
}
</style>
